// MIT License
// 
// Copyright (c) 2018 Cong Feng.
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

#include "simplecc/LLVM/LLVMTypeMap.h"

using namespace simplecc;

llvm::Type *LLVMTypeMap::getType(BasicTypeKind Type) const {
  switch (Type) {
  case BasicTypeKind::Character:
    return Type::getInt8Ty(TheContext);
  case BasicTypeKind::Int:
    return Type::getInt32Ty(TheContext);
  case BasicTypeKind::Void:
    return Type::getVoidTy(TheContext);
  }
}

llvm::Type *LLVMTypeMap::getTypeFromVarDecl(VarDecl *VD) const {
  if (VD->isArray())
    return getType(ArrayType(VD));
  return getType(VarType(VD->getType()));
}

llvm::Type *LLVMTypeMap::getType(const ArrayType &A) const {
  return llvm::ArrayType::get(getType(A.getElementType()), A.getSize());
}

llvm::FunctionType *LLVMTypeMap::getType(const FuncType &F) const {
  Type *ReturnType = getType(F.getReturnType());
  std::vector<Type *> ArgTypes(F.getNumArgs());
  for (int i = 0; i < F.getNumArgs(); i++) {
    ArgTypes[i] = getType(F.getArgTypeAt(i));
  }
  return FunctionType::get(ReturnType, ArgTypes, false);
}